Submission #721765

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
721765	2023-04-11 07:08:44	viwlesxq	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KiB

eastereggs

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#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
typedef string str;
int findEgg(int n, vector <pair <int, int>> edges) {
  vector <int> g[n + 1];
  int par[n + 1], sz[n + 1];
  vector <bool> used(n + 1, false);
  for (auto [a, b] : edges) {
    g[a].push_back(b);
    g[b].push_back(a);
  }
  function <void(int, int)> prepare = [&](int v, int p) {
    par[v] = p;
    sz[v] = 1;
    for (int to : g[v]) {
      if (to == p) {
        continue;
      }
      prepare(to, v);
      sz[v] += sz[to];
    }
  };
  prepare(1, -1);
  function <int(int, int)> get_centroid = [&](int v, int p) {
    for (int to : g[v]) {
      if (to == p || used[to]) {
 
 
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Compilation message (stderr)

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:54:9: error: 'query' was not declared in this scope
   54 |     if (query(subtree)) {
      |         ^~~~~